Hello I have to go from shanghai airport to the Grand Mercure Central on wednesday (june 10th)

Hi Prost. You msut refer to Pudong Airport, right? Well, you are suggested to take airport shuttle bus line 5 and get off at SH Railway Station. You will reach the south square of the train station. Walk along Moling Road for around 3min to find your hotel on West Tianmu Road, close to exit 4 and 5 of the railway station metro station.