Miners buoy Australian shares on copper boost; banks and energy stocks cap gains

Australian shares eked out slight gains on Wednesday, largely driven by heavyweight miners, while losses in banks and energy firms limited further strength.The S&P/ASX 200 index ASX:XJO rose 0.3% to 8,787.90 by 0010 GMT. The benchmark finished up 0.3% Tuesday.The resources sub-index ASX:XMM, accoun…