2.2.4 Transition Metals - Making Copper (and silver) Mirrors

Hi guys! Today I made a bunch more metal mirrors, this time trying the exotic copper analogue version (which haven't been done on TH-cam yet) of the famous silver mirror reaction, and succeeded.
By the way, I am very sorry to announce that I will stop posting videos in this summer. I decided to enhance and improve my lab on its safety aspects and invest on some new equipments and reagents to bring more novel and interesting experiments to you guys, hopefully starting on this November!!
Previous silver mirror video: • 2.2.3 Transition Metal...

[@MrVeryCranky]

You should try excluding the air with a vacuum chamber.
This would also permit coating flat objects.

[@tomzwinkels6940]

Copper salts can be air sensitive good job