Aqueous copper(II) sulfate is electrolysed with copper electrodes. Which row gives the changes that occur during the electrolysis?
- AMass of anode: increases; mass of cathode: decreases; colour of solution: becomes paler.
- BMass of anode: increases; mass of cathode: decreases; colour of solution: stays the same.
- CMass of anode: decreases; mass of cathode: increases; colour of solution: becomes paler.
- DMass of anode: decreases; mass of cathode: increases; colour of solution: stays the same.