 He was named as a substitute for Kerry in the 2014 All-Ireland Final against Donegal which Kerry went on to win by 2-9 to 0-12.Copper won his eight Munster Championship medal on 18 July 2015 when Kerry defeated Cork in the final by 1-11 to 1-6 after a replay.They defeated Kildare in the All-Ireland quarter-finals by 7-16 to 0-10 with Copper getting 2-3 before defeating Tyrone in the semi-final by 0-18 to 1-11, Copper getting two points.