What happens if you send USDT to an ETH address?

I'm sorry, but I'm a bit confused about this. If I send USDT, which is a stablecoin pegged to the US dollar, to an Ethereum address, what exactly will happen? Will the funds be lost forever? Or will they just sit there, unclaimed? And if they can be recovered, how would I go about doing that? Is there a fee involved? And how long would the process take? I'm just trying to understand the mechanics of this situation. Could you please explain it to me in a bit more detail? Thank you so much for your help!