Now, this might be a cool thing, but mojang said deepslate copper can't naturally generate. But I found some.

This is in my server. One thing you should note before trying out the seed and coords is that the server was originally 1.16.4, but now it is 1.17.

Seed: 8870531537681070362
Command: /execute in minecraft:overworld run tp @s -5054.60 13.00 4297.47 -178.85 23.10