How to make this Coin scipt? I have no idea. :/

Hi guys!

I have a "small" problem! How can I make this thing?

So we have 2 peoples on a Server.

So.. If "player1" pickup a coin, this coin will go invisible, and "player2" can't pick up the coin. How can I make it, if "player1" picks up a coin, it will invisible for him, but "player2", still see it, and he can pick up the coin.