What is France hoping for by inviting Trump to have dinner in Versailles?

Following the G7 meeting in Evian les Bains, US President Donald Trump is headed to the Versailles castle, where he will be welcomed as an honoured guest. French President Emmanuel Macron chose the venue for a dinner between the two world leaders, as he hopes to patch up relations with the American President. The dinner was proposed by Macron to celebrate the US's 250th Anniversary.