How do you make a copper golem?
Place a copper block, then put a carved pumpkin or jack o’lantern on top. If nothing spawns, check that your version has copper golems.
What does a copper golem do?
It helps sort items into copper chests when you build the full setup. It oxidizes unless you wax it. It is not a tank like an iron golem.
How do you stop a copper golem from oxidizing?
Wax it with honeycomb. For how often people ask about it, see What’s the loudest thing people ask Google about Minecraft?.
Edition note.
Recipes and combat numbers can change after updates. If something fails in-world, check your version’s patch notes.

