NEW YORK (MarketWatch) -- Copper futures rallied Monday in New York, climbing to their highest level in more than seven months after China, the biggest copper consumer, reported its May manufacturing expanded for a third month. After climbing above $990 an ounce, gold fell 30 cents to end at $980 an ounce. Copper for July delivery rose 12 cents to finish at $2.32 a pound on the Comex division of the New York Mercantile Exchange.