Minecraft ore distribution: the best Y level for every ore
Copper Ore peaks at Y 48 (good from Y 36 to 60) and generates between Y -16 and Y 112.

Copper Ore is plentiful between roughly Y -16 and Y 112, especially in dripstone caves; each block drops two to five Raw Copper. Like every ore, it needs a pickaxe, and the enchantment on that pickaxe changes what it drops. Mining works the same for every ore; the Iron Ore page explains pickaxe tiers, Fortune and Silk Touch.
It is mined with a pickaxe (at least tier stone) and drops Raw Copper.
This item has no crafting recipe.
Copper Ore peaks at Y 48 (good from Y 36 to 60) and generates between Y -16 and Y 112.
Stone tools are faster, last longer and can mine Iron Ore and Copper Ore; a wooden pickaxe cannot.
Mined with Silk Touch, the block drops itself; without it, it drops Raw Copper.
It is mined with a pickaxe of the right tier to get its resource; Fortune multiplies the drop and Silk Touch keeps the block. It is an ingredient in one recipe: Copper Ingot.
The fastest tool is the pickaxe. It needs at least a stone pickaxe.
Placed under a Note Block, Copper Ore gives the Bass drum sound.