Nusrat Bibi on Nearpeer MDCAT Common Room

AOA sir, sir one question is literally confusing me that during electrolysis of aquous CuCl what is released at anode and cathode a/c to my point of view O2 must be released at anode but a/c to authentic resources instead of O2 Cl is released so my literal question is that there is not mentioned that it's concentrated like brine so Cl will be released but here is aquous so why Cl is released?????