I don't understand... your table data *is* already in an array, in your model. Looking at your code, your model looks like:
{ Customers : [ { CustomerID : "...", City : "..." }, { CustomerID : "...", City : "..." }, // etc ] }
So getting property Customers would get your tabledata as an array:
<yourmodel>.getProperty("/Customers");
Or do you have a different requirement?