Good morning

Was wondering whether someone could help me with this.
I am trying to select all rows up until the last row with a value in column
A on Worksheet1, copy this selection, and paste it into the (last row + 1) in
Worksheet 2. Initially I was going to use this code below (as I know that
the total number of lines on sheet1 will never exceed 250):

Sub Copy()

Dim Lastrow As Long

Sheets("Sheet1").Select
Rows("1:250").Select
Selection.Copy
Sheets("Sheet2").Select
Lastrow = Cells(Cells.Rows.Count, "A").End(xlUp).Row
Cells(Lastrow + 1, 1).Select
Selection.Paste

End Sub

I get the following error:
Run-time error '438':
Object doesn't support this property or method

Please can someone assist? (also, whilst the code above simply selects
columns1:250, if I could select up until the last row with data in column A,
I would prefer that)

Thanks so much for the help