A student investigates the electrolysis of copper(II) sulfate solution using copper electrodes.
Describe how, after the power supply has been switched off, the mass of copper deposited on the negative electrode (cathode) can be determined accurately.
Practise Edexcel GCSE Chemistry Electrolytic processes with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.