Yes, MAPLES is a Scrabble word!

Letter values in Scrabble US: M 3, A 1, P 3, L 1, E 1, S 1.

Is it a valid word?

MAPLES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

wood of any of various maple trees; especially the hard close-grained wood of the sugar maple; used especially for furniture and flooring
any of numerous trees or shrubs of the genus Acer bearing winged seeds in pairs; north temperate zone