Put a light square at each player's right-hand corner. From White's side, files a through h go left to right and ranks 1 through 8 go from near to far. Both colors of square are used in chess.
Worked example
Each player has eight pawns and eight other pieces: two rooks, two knights, two bishops, one queen and one king. Eight plus eight makes 16 pieces for one player. Double that for both players.
Ready for White's First Turn
White's back rank, from a1 to h1, is rook, knight, bishop, queen, king, bishop, knight, rook. White pawns fill rank 2. Black has the same piece types on rank 8 and pawns on rank 7. Queens start on their own square color: White on light d1 and Black on dark d8. White goes first.