Help Me Figure Out What Exactly Is This Coin Is Please

I think it was most likely plated post-mint. I'd like to hear others' opinions though.

First

Plated means someone coated it with another metal and so the edge would not show the copper.

There are two things that can really help us help you:
First - Cick on the link for an example of the tissue test. You will at least know if the surface is silver this way.
Second - can you get a weight of the coin?
A silver planchet from the proof coins of this year weigh 6.25 grams while a clad weighs 5.7 grams.

So if it passes the tissue test, but the weight is not right, you know its played with silver.

These coins were typically plated with other metals, painted, etc. to make market gimmicky "collectable sets."

There really is no way a silver planchet could have been at the Denver mint this year.

I was reading about Experimental planchets for the 1999 State Quarters that bring good money. I'll look more into it bc I just found something on it now an I'll do the tissue test and yes unfortunately my scale broke a few weeks ago or I would have already weighed it. I need to buy a new scale

JBuck what forum did you place it in so I know where to put it next time? Thanks

JBuck thank you for replying because I'm new to this site and I'm already loving it because my other old coin was identified ASAP but this state coin is different lol but looks to me that it's an Experimental planchet and only a few and not many were made and people big of the company actually were the ones that supposedly got these as gifts or something and took them home and one place said they can go for thousands

Sorry, but it's almost certainly not an experimaental planchet. As others have stated, it's a perfectly normal quarter which has been plated with another metal - possibly silver, possibly platinum - after it was struck. These were not plated by the Mint, as Giwalsh stated, but plated by third parties - companies such as National Collectors Mint, or Govmint.com (which, despite its name, is not actually associated with the government mint in any way), or the set posted in this thread, which was produced by Merrick Mint.

These plated coins are often found in circulation, because there is next to no value for them - collectors don't want them, coin dealers don't want them, people on ebay don't want them. So in frustration, their owners take them to the bank and deposit them.

But, as Earle42 said, the weight will convince you.

The people on the Home Shopping Networks and other seller of coins on TV plated tend of thousands of sets of State Quarters with gold, silver, and platinum and the sold them for YEARS. Many of these coins then later found their way into circulation after the unfortunates that bought them tried to sell them and found out that their heirloom treasure was actually just worth face value. These coins show up on the various coin forums very frequently. The Secretary of one of out local coin clubs got two solid rolls of the gold plated ones from the bank.

Over the years I have found several of the plated ones in my cash registers. I've also come across the colorized State Quarters in the wild, plus some that have been painted or decaled with random stuff.