Can we leave our luggage weighing approx. 40 kilos in the HKIA for our stopover for 4 days?

We are flying from Frankfurt Germany to Manila via Cathay Pacific. We have a stopover in HK for 4 days. We plan to stay 2 days in HK & 2 days in Macau. We don't want to be carrying our luggage in these stopver. Can we leave it somewhere in the airport or can the airline arrange it for our connecting flight? How much will it cost us for this?