I think u should make it so we can get the copper nodes that's above our heads as we mine accessible rather than out of reach,
#Copper above head unreachable
scarlet geyser
like make the mining more directional so if we look up we can mine the copper above
rain garden
You can build stair to get them, but I agree that hit box for mining should be vertically wider. Character animation when you aim high looks like you can hit it, but the game only count from where you stand.
The annoying part is when you build stairs too high, your character stuck at the ceiling and can't hit the spot you want. Lower the stair one step, and you're too low to hit it.
native badger
I build a flat platform and just jump on top of it. It also gives you a larger walking area to hit from aswell