Which statement correctly describes an electrode in a voltaic cell of copper and hydrogen?
-copper atoms become copper ions at the anode because the srp is more positive.
-hydrogen ions become diatomic hydrogen at the cathode because hydrogen is always reduced in a voltaic cell.
-copper ions become copper atoms at the cathode because copper is always reduced in a voltaic cell.
-diatomic hydrogen becomes hydrogen ions at the anode because the srp is more negative.