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Electrolysis Investigation Planning Aim:- To find the effect of time on copper deposition on the cathode during the electrolysis of copper sulphate solution. Introduction:- I am going to test the aim in this test by setting up a beaker with two carbon rods in it. One will be a anode and one will be a cathode. These rods will have six volts flowing through them. The beaker will be half filled up with copper sulphate which is a blue liquid and will act as a electrolyte. To save time and effort I will used a power supply instead of using some batteries. For safety the power supply will be locked at six volts. I will then turn the power on and wait and see if the cathode has gained any weight by picking up pure carbon from the impure carbon on the anode. List of variables:- Volume of copper sulphate Size of copper rods Length of time I leave the power on Size of voltage Movement of the Anode and Cathode I have chosen to change the length of time I will leave the power