Copeland was elected unopposed to the New South Wales Mining Board in 1874.
[2] He entered the New South Wales Legislative Assembly and represented six different seats between 1877 and 1900.
[2] He was briefly Secretary for Public Works in the Stuart ministry appointed in January 1883, defeated in the resulting ministerial by-election and was returned to the assembly at the East Sydney by-election held the following week, before resigning from the ministry in March 1883 following a speech he made, whilst intoxicated, at the St Patrick's day banquet.
[3] He was appointed Agent-General for New South Wales in London in May 1900, serving until 18 July 1903.
[1] Copeland died in Twickenham, London, England on 22 June 1904(1904-06-22) (aged 65).