Copper electrodes are used to electrolyse aqueous copper(II) sulfate. Which row gives the correct description of what happens?
- Amass of anode increases; mass of cathode decreases; colour of electrolyte remains blue
- Bmass of anode remains the same; mass of cathode decreases; colour of electrolyte becomes colourless
- Cmass of anode decreases; mass of cathode increases; colour of electrolyte remains blue
- Dmass of anode remains the same; mass of cathode increases; colour of electrolyte becomes colourless