THe batteries are made gen . using Zn cover , Cu on the rihgt side , Zn has greater tendency to form Zn2+ than Cu whichc has tendency to get reduced from Cu2+ to Cu . Zn is present near the end marked -ve. Here oxdn takes place ,Zn --------> Zn2+ , thus as per IUPAC , It's the anode.
The right end has , Cu2+ ---------> Cu conversion , so redn is taking place , so IUPAC wise , Cathode.
Hope it helps.